Finding the Fourth Proportional to 7,898,029,457.80, 11,847,044,186.70 and 2,655,895,433.80
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Solution
The fourth proportional to 7,898,029,457.80, 11,847,044,186.70 and 2,655,895,433.80 is: 3,983,843,150.70
Step by Step Solution
- Step 1: Write the proportion equation
7,898,029,457.80 : 11,847,044,186.70 = 2,655,895,433.80 : x - Step 2: Convert to fraction form
7,898,029,457.80/11,847,044,186.70 = 2,655,895,433.80/x - Step 3: Cross multiply
7,898,029,457.80x = 11,847,044,186.70 × 2,655,895,433.80 - Step 4: Simplify right side
7,898,029,457.80x = 31,464,510,559,483,367,424 - Step 5: Solve for x
x = 31,464,510,559,483,367,424/7,898,029,457.80 - Step 6: Final answer
x = 3,983,843,150.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.